cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A098591 a(k) contains primality information for the numbers in the interval (k*30,...,(k+1)*30) packed into one byte using the fact that only numbers == 1, 7, 11, 13, 17, 19, 23, 29 mod 30 can be prime.

Table of values

n a(n)
1 223
2 239
3 126
4 182
5 219
6 61
7 249
8 213
9 79
10 30
11 243
12 234
13 166
14 237
15 158
16 230
17 12
18 211
19 211
20 59
21 221
22 89
23 165
24 106
25 103
26 146
27 189
28 120
29 30
30 166
31 86
32 86
33 227
34 173
35 45
36 222
37 42
38 76
39 85
40 217
41 163
42 240
43 159
44 3
45 84
46 161
47 248
48 46
49 253
50 68
51 233
52 102
53 246
54 19
55 58
56 184
57 76

List of values

[223, 239, 126, 182, 219, 61, 249, 213, 79, 30, 243, 234, 166, 237, 158, 230, 12, 211, 211, 59, 221, 89, 165, 106, 103, 146, 189, 120, 30, 166, 86, 86, 227, 173, 45, 222, 42, 76, 85, 217, 163, 240, 159, 3, 84, 161, 248, 46, 253, 68, 233, 102, 246, 19, 58, 184, 76]